Calibration card



FIG. 1 is a top, front and right side perspective view of a calibration card showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view, the broken line showing of an box encompassing an electronically readable bar code is for illustrative purposes only and form no part of the claimed design;

FIG. 5 is a bottom plan view;

FIG. 6 is a right side elevational view; and,

FIG. 7 is a left side elevational view thereof.

FIG. 1 has been drawn on a reduced scale with respect to FIGS. 2-7. 

The ornamental design for the calibration card, as shown and described. 